SB20260918302 - Out-of-bounds read in Linux kernel mt76 mt7996 driver
Published: September 18, 2026
Security Bulletin ID
SB20260918302
CSH Severity
Low
Patch available
YES
Number of vulnerabilities
1
Exploitation vector
Remote access
Highest impact
Partial DoS
Breakdown by Severity
- Low
- Medium
- High
- Critical
Description
This security bulletin contains information about 1 vulnerability.
1) Out-of-bounds read (CVE-ID: CVE-2026-90374)
CWE-ID: CWE-125 - Out-of-bounds read
CVSSv4: 6.3 [CVSS:4.0/AV:N/AC:L/AT:P/PR:N/UI:N/VC:N/VI:N/VA:L/SC:N/SI:N/SA:N]
The vulnerability allows a remote attacker to cause an out-of-bounds memory access.
The vulnerability exists due to improper validation of an array index in the mt7996_mac_fill_rx RX handler when processing a received descriptor with a corrupt or reserved band index. A remote attacker can supply a received descriptor with a corrupt or reserved band index to cause an out-of-bounds memory access.
Remediation
Install update from vendor's website.